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Win32.HLLW.Autoruner.56816

Aggiunto al database dei virus Dr.Web: 2011-08-22

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /G'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /S'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /n'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /b'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /W'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /X'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /Q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /f'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /H'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /v'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /k'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /r'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /I'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /A'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /m'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /P'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /l'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /T'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /e'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /D'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuanet' = '%HOMEPATH%\cuanet.exe /C'
Creates the following files on removable media:
  • <Drive name for removable media>:\Documents.lnk
  • <Drive name for removable media>:\Passwords.lnk
  • <Drive name for removable media>:\Pictures.lnk
  • <Drive name for removable media>:\Video.lnk
  • <Drive name for removable media>:\Music.lnk
  • <Drive name for removable media>:\uLt.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\cuanet.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\cuanetx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Creates and executes the following:
  • %HOMEPATH%\cuanet.exe 
Modifies file system :
Creates the following files:
  • %HOMEPATH%\cuanet.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\cuanet.exe
  • <Drive name for removable media>:\cuanetx.exe
  • <Drive name for removable media>:\uLt.ico
  • %HOMEPATH%\cuanet.exe
  • <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
  • 'ns#.##ayer1532.com':8000
UDP:
  • DNS ASK ns#.##ayer1532.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''